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4415b03abb
linux/drivers/dma
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Laurent Pinchart 4415b03abb dmaengine: shdma: Allocate cyclic sg list dynamically 
The sg list used to prepare cyclic DMA descriptors is currently
allocated statically on the stack as an array of 32 elements. This makes
the shdma_prep_dma_cyclic() function consume a lot of stack space, as
reported by the compiler:

drivers/dma/sh/shdma-base.c: In function ‘shdma_prep_dma_cyclic’:
drivers/dma/sh/shdma-base.c:715:1: warning: the frame size of 1056 bytes
is larger than 1024 bytes [-Wframe-larger-than=]

Given the limited Linux kernel stack size, this could lead to stack
overflows. Fix the problem by allocating the sg list dynamically.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-07-31 17:15:45 +05:30
..
bestcomm drivers: clean-up prom.h implicit includes 2013-10-09 20:04:04 -05:00
dw dmaengine: dw: don't perform DMA when dmaengine_submit is called 2014-07-15 22:14:30 +05:30
ioat ioat: fix tasklet tear down 2014-02-25 09:44:20 -08:00
ipu dmaengine: ipu: use return value of request_irq 2014-07-25 15:39:50 +05:30
ppc4xx Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2014-01-29 20:27:23 -08:00
sh dmaengine: shdma: Allocate cyclic sg list dynamically 2014-07-31 17:15:45 +05:30
xilinx dma: Add Xilinx AXI Video Direct Memory Access Engine driver support 2014-04-30 10:44:13 +05:30
acpi-dma.c acpi-dma: convert to return error code when asked for channel 2014-02-11 23:30:50 +05:30
amba-pl08x.c dma: pl08x: Export pl08x_filter_id 2014-01-28 08:45:54 +05:30
at_hdmac_regs.h dmaengine: at_hdmac: remove unused function 2013-12-12 22:43:41 -08:00
at_hdmac.c dmaengine: at_hdmac: use tasklet_kill in teardown 2014-03-17 18:33:43 +05:30
bcm2835-dma.c dmaengine: Add DMA_PRIVATE to BCM2835 driver 2014-01-20 12:31:50 +05:30
coh901318_lli.c Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2013-02-26 09:24:48 -08:00
coh901318.c dmaengine: coh901318: use DMA_COMPLETE for dma completion status 2013-10-25 11:15:56 +05:30
coh901318.h dma: coh901318: merge header files 2013-01-07 17:36:37 +01:00
cppi41.c dma: cppi41: handle 0-length packets 2014-07-01 12:15:48 +05:30
dma-jz4740.c dmaengine: jz4740: Fix GPL v2 license string typo 2014-07-25 14:33:22 +05:30
dmaengine.c dmaengine: fix dmaengine_unmap failure 2014-05-21 14:02:37 -07:00
dmaengine.h dmaengine: consolidate initialization of cookies 2012-03-13 11:37:22 +05:30
dmatest.c Add new line to test result strings produced in verbose mode 2014-03-26 11:41:45 +05:30
edma.c dmaengine: edma: Serve cyclic (audio) channels with high priority queue 2014-07-28 17:03:16 +05:30
ep93xx_dma.c dmaengine: remove DMA unmap from drivers 2013-11-14 11:04:38 -08:00
fsl-edma.c dmaengine: fsl-edma: fix dmamux index calculating error 2014-07-25 14:11:50 +05:30
fsldma.c dmaengine: Freescale: change descriptor release process for supporting async_tx 2014-07-14 21:32:18 +05:30
fsldma.h dmaengine: Freescale: change descriptor release process for supporting async_tx 2014-07-14 21:32:18 +05:30
imx-dma.c dma: imx-dma: Add missing module owner field 2014-03-06 20:51:09 +05:30
imx-sdma.c dmaengine: imx-sdma: Add a new DMATYPE for Shared Peripheral ASRC 2014-07-25 14:10:36 +05:30
intel_mid_dma_regs.h dma: fix comments 2012-09-01 08:57:12 -07:00
intel_mid_dma.c dmaengine: intel_mid_dma: use DMA_COMPLETE for dma completion status 2013-10-25 11:16:04 +05:30
iop-adma.c Merge commit 'dmaengine-3.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/dmaengine 2013-11-16 12:02:36 +05:30
iovlock.c
k3dma.c dmaengine: k3dma: fix sparse warnings 2014-01-20 13:53:20 +05:30
Kconfig dmaengine: of: kconfig: select DMA_ENGINE when DMA_OF is selected 2014-07-30 19:06:55 +05:30
Makefile dmaengine: sun6i: Add driver for the Allwinner A31 DMA controller 2014-07-25 18:14:58 +05:30
mmp_pdma.c dma: mmp_pdma: add support for residue reporting 2014-05-07 12:33:40 +05:30
mmp_tdma.c dma: mmp_tdma: move to generic device tree binding 2014-03-06 14:49:54 +05:30
moxart-dma.c dmaengine: Add MOXA ART DMA engine driver 2014-01-20 12:32:46 +05:30
mpc512x_dma.c dmaengine: mpc512x: register for device tree channel lookup 2014-07-26 00:21:42 +05:30
mv_xor.c dma: mv_xor: Flush descriptors before activating a channel 2014-05-21 14:02:35 -07:00
mv_xor.h dma: mv_xor: Fix mis-usage of mmio 'base' and 'high_base' registers 2013-11-14 11:04:42 -08:00
mxs-dma.c dmaengine: Use dma_zalloc_coherent 2014-07-14 22:29:35 +05:30
of-dma.c dmaengine: of: add common xlate function for matching by channel id 2014-07-26 00:21:41 +05:30
omap-dma.c Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2014-04-10 08:55:08 -07:00
pch_dma.c dmaengine: pch: fix compilation for alpha target 2014-05-22 18:50:49 +05:30
pl330.c dmaengine: pl330: Check if the DMA descriptor is NULL 2014-07-22 21:38:43 +05:30
qcom_bam_dma.c dmaengine: qcom_bam_dma: Add descriptor flags 2014-07-14 22:06:41 +05:30
s3c24xx-dma.c dmaengine: s3c24xx-dma: Add cyclic transfer support 2014-06-01 22:22:51 +05:30
sa11x0-dma.c dmaengine: sa11x0: remove broken #ifdef 2014-05-21 11:40:49 +05:30
sirf-dma.c dmaengine: sirf: off by one in of_dma_sirfsoc_xlate() 2014-04-16 11:59:24 +05:30
ste_dma40_ll.c dmaengine: ste_dma40_ll: Replace meaningless register set with comment 2013-06-04 11:12:10 +02:00
ste_dma40_ll.h dmaengine: ste_dma40: Remove unnecessary call to d40_phy_cfg() 2013-05-23 21:13:19 +02:00
ste_dma40.c dma: ste_dma40: Convert to the late system PM callbacks 2014-05-07 15:32:07 +05:30
sun6i-dma.c dmaengine: sun6i: Fix memory leaks 2014-07-30 19:14:17 +05:30
tegra20-apb-dma.c Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2014-01-29 20:27:23 -08:00
timb_dma.c dmaengine: remove DMA unmap from drivers 2013-11-14 11:04:38 -08:00
TODO dmaengine: dw: don't perform DMA when dmaengine_submit is called 2014-07-15 22:14:30 +05:30
txx9dmac.c dma: fix build warnings in txx9 2013-12-12 22:43:41 -08:00
txx9dmac.h dmaengine: move last completed cookie into generic dma_chan structure 2012-03-13 11:36:06 +05:30
virt-dma.c dmaengine: virt-dma: add support for cyclic DMA periodic callbacks 2012-07-01 14:15:23 +01:00
virt-dma.h dma: fix vchan_cookie_complete() debug print 2014-01-26 17:33:45 +05:30